mirror of
https://github.com/pret/pmd-sky.git
synced 2026-08-05 02:37:05 -05:00
223 lines
3.8 KiB
ArmAsm
223 lines
3.8 KiB
ArmAsm
.include "asm/macros.inc"
|
|
.include "main_0207F894.inc"
|
|
|
|
.text
|
|
|
|
arm_func_start Mathi_Crc8InitTable
|
|
Mathi_Crc8InitTable: ; 0x02084FB8
|
|
stmdb sp!, {r3, lr}
|
|
mov ip, #0
|
|
mov r2, ip
|
|
_02084FC4:
|
|
mov r3, ip
|
|
mov lr, r2
|
|
_02084FCC:
|
|
tst r3, #0x80
|
|
eorne r3, r1, r3, lsl #1
|
|
add lr, lr, #1
|
|
moveq r3, r3, lsl #1
|
|
cmp lr, #8
|
|
blo _02084FCC
|
|
strb r3, [r0, ip]
|
|
add ip, ip, #1
|
|
cmp ip, #0x100
|
|
blo _02084FC4
|
|
ldmia sp!, {r3, pc}
|
|
arm_func_end Mathi_Crc8InitTable
|
|
|
|
arm_func_start Mathi_Crc8Update
|
|
Mathi_Crc8Update: ; 0x02084FF8
|
|
stmdb sp!, {r4, lr}
|
|
cmp r3, #0
|
|
ldrb lr, [r1]
|
|
mov r4, #0
|
|
bls _02085028
|
|
_0208500C:
|
|
ldrb ip, [r2], #1
|
|
add r4, r4, #1
|
|
cmp r4, r3
|
|
eor ip, lr, ip
|
|
and ip, ip, #0xff
|
|
ldrb lr, [r0, ip]
|
|
blo _0208500C
|
|
_02085028:
|
|
strb lr, [r1]
|
|
ldmia sp!, {r4, pc}
|
|
arm_func_end Mathi_Crc8Update
|
|
|
|
arm_func_start Mathi_Crc16InitTable
|
|
Mathi_Crc16InitTable: ; 0x02085030
|
|
stmdb sp!, {r3, lr}
|
|
mov lr, #0
|
|
mov r3, lr
|
|
_0208503C:
|
|
mov ip, lr
|
|
mov r2, r3
|
|
_02085044:
|
|
tst ip, #1
|
|
eorne ip, r1, ip, lsr #1
|
|
add r2, r2, #1
|
|
moveq ip, ip, lsr #1
|
|
cmp r2, #8
|
|
blo _02085044
|
|
mov r2, lr, lsl #1
|
|
add lr, lr, #1
|
|
strh ip, [r0, r2]
|
|
cmp lr, #0x100
|
|
blo _0208503C
|
|
ldmia sp!, {r3, pc}
|
|
arm_func_end Mathi_Crc16InitTable
|
|
|
|
arm_func_start Mathi_Crc16Update
|
|
Mathi_Crc16Update: ; 0x02085074
|
|
stmdb sp!, {r4, lr}
|
|
cmp r3, #0
|
|
ldrh lr, [r1]
|
|
mov r4, #0
|
|
bls _020850AC
|
|
_02085088:
|
|
ldrb ip, [r2], #1
|
|
add r4, r4, #1
|
|
cmp r4, r3
|
|
eor ip, lr, ip
|
|
mov ip, ip, lsl #0x18
|
|
mov ip, ip, lsr #0x17
|
|
ldrh ip, [r0, ip]
|
|
eor lr, ip, lr, lsr #8
|
|
blo _02085088
|
|
_020850AC:
|
|
strh lr, [r1]
|
|
ldmia sp!, {r4, pc}
|
|
arm_func_end Mathi_Crc16Update
|
|
|
|
arm_func_start Mathi_Crc32InitTable
|
|
Mathi_Crc32InitTable: ; 0x020850B4
|
|
stmdb sp!, {r3, lr}
|
|
mov ip, #0
|
|
mov r2, ip
|
|
_020850C0:
|
|
mov r3, ip
|
|
mov lr, r2
|
|
_020850C8:
|
|
tst r3, #1
|
|
eorne r3, r1, r3, lsr #1
|
|
add lr, lr, #1
|
|
moveq r3, r3, lsr #1
|
|
cmp lr, #8
|
|
blo _020850C8
|
|
str r3, [r0, ip, lsl #2]
|
|
add ip, ip, #1
|
|
cmp ip, #0x100
|
|
blo _020850C0
|
|
ldmia sp!, {r3, pc}
|
|
arm_func_end Mathi_Crc32InitTable
|
|
|
|
arm_func_start Mathi_Crc32Update
|
|
Mathi_Crc32Update: ; 0x020850F4
|
|
stmdb sp!, {r4, lr}
|
|
cmp r3, #0
|
|
ldr lr, [r1]
|
|
mov r4, #0
|
|
bls _02085128
|
|
_02085108:
|
|
ldrb ip, [r2], #1
|
|
add r4, r4, #1
|
|
cmp r4, r3
|
|
eor ip, lr, ip
|
|
and ip, ip, #0xff
|
|
ldr ip, [r0, ip, lsl #2]
|
|
eor lr, ip, lr, lsr #8
|
|
blo _02085108
|
|
_02085128:
|
|
str lr, [r1]
|
|
ldmia sp!, {r4, pc}
|
|
arm_func_end Mathi_Crc32Update
|
|
|
|
arm_func_start Math_CalcCrc8
|
|
Math_CalcCrc8: ; 0x02085130
|
|
stmdb sp!, {r3, lr}
|
|
mov lr, r1
|
|
mov ip, #0
|
|
mov r3, r2
|
|
add r1, sp, #0
|
|
mov r2, lr
|
|
strb ip, [sp]
|
|
bl Mathi_Crc8Update
|
|
ldrb r0, [sp]
|
|
ldmia sp!, {r3, pc}
|
|
arm_func_end Math_CalcCrc8
|
|
|
|
arm_func_start Math_CalcCrc16
|
|
Math_CalcCrc16: ; 0x02085158
|
|
stmdb sp!, {r3, lr}
|
|
mov lr, r1
|
|
mov ip, #0
|
|
mov r3, r2
|
|
add r1, sp, #0
|
|
mov r2, lr
|
|
strh ip, [sp]
|
|
bl Mathi_Crc16Update
|
|
ldrh r0, [sp]
|
|
ldmia sp!, {r3, pc}
|
|
arm_func_end Math_CalcCrc16
|
|
|
|
arm_func_start Math_CalcCrc32
|
|
Math_CalcCrc32: ; 0x02085180
|
|
stmdb sp!, {r3, lr}
|
|
mov lr, r1
|
|
mvn ip, #0
|
|
mov r3, r2
|
|
add r1, sp, #0
|
|
mov r2, lr
|
|
str ip, [sp]
|
|
bl Mathi_Crc32Update
|
|
ldr r0, [sp]
|
|
mvn r0, r0
|
|
ldmia sp!, {r3, pc}
|
|
arm_func_end Math_CalcCrc32
|
|
|
|
arm_func_start sub_020851AC
|
|
sub_020851AC: ; 0x020851AC
|
|
stmdb sp!, {r4, lr}
|
|
sub sp, sp, #8
|
|
movs r4, r0
|
|
addeq sp, sp, #8
|
|
moveq r0, #0
|
|
ldmeqia sp!, {r4, pc}
|
|
ldrh r0, [r4, #0x3c]
|
|
cmp r0, #0
|
|
addeq sp, sp, #8
|
|
moveq r0, #0
|
|
ldmeqia sp!, {r4, pc}
|
|
add r1, sp, #0
|
|
add r0, r4, #0x50
|
|
mov r2, #8
|
|
bl MI_CpuCopy8
|
|
add r0, sp, #0
|
|
mov r1, #8
|
|
bl DC_StoreRange
|
|
ldr r0, [r4, #0x44]
|
|
cmp r0, #0
|
|
bne _02085230
|
|
ldrh r1, [sp]
|
|
ldr r0, _0208523C ; =0x00002348
|
|
cmp r1, r0
|
|
ldrneh r1, [sp]
|
|
ldrne r0, _02085240 ; =0x0000BD8A
|
|
cmpne r1, r0
|
|
bne _02085230
|
|
ldrh r0, [sp, #6]
|
|
cmp r0, #4
|
|
addeq sp, sp, #8
|
|
moveq r0, #1
|
|
ldmeqia sp!, {r4, pc}
|
|
_02085230:
|
|
mov r0, #0
|
|
add sp, sp, #8
|
|
ldmia sp!, {r4, pc}
|
|
.align 2, 0
|
|
_0208523C: .word 0x00002348
|
|
_02085240: .word 0x0000BD8A
|
|
arm_func_end sub_020851AC
|
|
|